CA2893743A1 - Profil aerodynamique comportant une distribution d'epaisseur en envergure etagee - Google Patents

Profil aerodynamique comportant une distribution d'epaisseur en envergure etagee Download PDF

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Publication number
CA2893743A1
CA2893743A1 CA2893743A CA2893743A CA2893743A1 CA 2893743 A1 CA2893743 A1 CA 2893743A1 CA 2893743 A CA2893743 A CA 2893743A CA 2893743 A CA2893743 A CA 2893743A CA 2893743 A1 CA2893743 A1 CA 2893743A1
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CA
Canada
Prior art keywords
airfoil
slope
root
tip
spanwise
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2893743A
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English (en)
Other versions
CA2893743C (fr
Inventor
Raman Warikoo
Krishna Prasad Balike
Keegan Lobo
Hien Duong
Thomas Veitch
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Pratt and Whitney Canada Corp
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Pratt and Whitney Canada Corp
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Publication of CA2893743A1 publication Critical patent/CA2893743A1/fr
Application granted granted Critical
Publication of CA2893743C publication Critical patent/CA2893743C/fr
Active legal-status Critical Current
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F01D5/141—Shape, i.e. outer, aerodynamic form
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D9/00—Stators
    • F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
    • F01D9/04—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector
    • F01D9/041—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles forming ring or sector using blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/321—Rotors specially for elastic fluids for axial flow pumps for axial flow compressors
    • F04D29/324—Blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/30—Application in turbines
    • F05D2220/32—Application in turbines in gas turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00—Components
    • F05D2240/10—Stators
    • F05D2240/12—Fluid guiding means, e.g. vanes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00—Components
    • F05D2240/20—Rotors
    • F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2240/00—Components
    • F05D2240/20—Rotors
    • F05D2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • F05D2240/301—Cross-sectional characteristics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/20—Three-dimensional
    • F05D2250/29—Three-dimensional machined; miscellaneous
    • F05D2250/292—Three-dimensional machined; miscellaneous tapered
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00—Aeronautics or air transport
    • Y02T50/60—Efficient propulsion technologies, e.g. for aircraft

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Turbine Rotor Nozzle Sealing (AREA)

Abstract

Un profil aérodynamique dans une turbine à gaz comprend des côtés pression et aspiration opposés joints à des bords dattaque et de fuite opposés sur le profil de corde. Les côtés pression et aspiration sétendent en envergure dune racine à une pointe du profil aérodynamique. Le profil aérodynamique a une distribution en envergure dépaisseurs maximales de sections transversales en corde du profil aérodynamique. La distribution en envergure dépaisseurs maximales est réduite de la racine jusquau bout. Selon un aspect, la distribution en envergure est étagée entre une première partie sétendant de la racine et une deuxième partie sétendant jusquau bout.
CA2893743A 2014-11-25 2015-06-03 Profil aerodynamique comportant une distribution d'epaisseur en envergure etagee Active CA2893743C (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14/553,119 2014-11-25
US14/553,119 US9845684B2 (en) 2014-11-25 2014-11-25 Airfoil with stepped spanwise thickness distribution

Publications (2)

Publication Number Publication Date
CA2893743A1 true CA2893743A1 (fr) 2016-05-25
CA2893743C CA2893743C (fr) 2023-04-25

Family

ID=54199089

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2893743A Active CA2893743C (fr) 2014-11-25 2015-06-03 Profil aerodynamique comportant une distribution d'epaisseur en envergure etagee

Country Status (3)

Country Link
US (2) US9845684B2 (fr)
EP (1) EP3026214B1 (fr)
CA (1) CA2893743C (fr)

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Also Published As

Publication number Publication date
US10718215B2 (en) 2020-07-21
CA2893743C (fr) 2023-04-25
US20160146012A1 (en) 2016-05-26
EP3026214A1 (fr) 2016-06-01
EP3026214B1 (fr) 2019-04-10
US9845684B2 (en) 2017-12-19
US20180066522A1 (en) 2018-03-08

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